<span>mass B/molar mass A = (rate A/rate B)^2.
we know our unknown gas (A) effuses at .797 times our known gas (B) so
rate A/rate B = .797
so 0.797^2 = 28 / molar mass A
Molar mass A = 28 / 0.635 = 44.09 g / mole
Molar mass is 44.09 g/mol</span>
Note: You only asked for the mass of the solid, if you have further questions, you can ask, I will give you the solution
Answer:
Mass of solid = 75.7051 g
Explanation:
Mass of flask plus + solid = 134.2642 g
Mass of flask = 58.5591 g
Mass of solid = (Mass of flask + solid) - (Mask of flask)
Mass of solid = ( 134.2642) - (58.5591)
Mass of solid = 75.7051 g
We are going to use this formula :
Q = M*C*ΔT
when Q is the heat released by the material in J
and M is the mass in gram = 1600 g
C is the specific heat capacity of iron = 0.4494 J/g
and ΔT is the changing in temperature = 155 - 25 = 130 °C
So by substitution:
∴ Q = 1600 g * 0.4494 J/g * 130 °C
= 93475 J
∴ The amount of heat released in Joule = 93475 J
A. Noble gases are the chemical elements in group 18 of the periodic table.
B. Noble gas configuration is the electron configuration of noble gases.
C. Noble gases abbreviates large portions of the configuration.
Answer:
Strong acids and bases both denature proteins by severing disulphide bonds and at higher temperatures, can break proteins into peptides, or even individual amino acids.